Page 150 - DCAP108_DIGITAL_CIRCUITS_AND_LOGIC_DESIGNS

Unit 8: Memory

Notes
Microsoft Visual C++ 8.1 m/sec 3.0 m / 1.4 m/ 1.3 m/sec 1.2 m/sec 1.1 m/sec
2003 sec sec (–84%) (–85%) (–86%)
(actual performance (–63%) (–83%)
growth)
Borland Delphi 5 9.5 m/sec 3.6 m / 1.7 m/ 1.7 m/sec 1.6 m/sec 1.4 m/sec
(actual performance sec sec (–82%) (–83%) (–85%)
growth) (–62%) (–82%)
memory manager in .NET by default initializes allocated memory block to zeros. In diagram
we showed extrapolated values to eliminate this factor. Real values are about 25% less.

Testing Results Analysis
As you may see from the table above our Memory Manager shows dramatic performance
increase even for single threaded mode and perfect scalability for multithreaded mode on
multiprocessor/multicore system. The closest competitor MS NET 2.0 shows 2 times less
performance even for single threaded mode and much less scalability. Other memory managers
shows even performance degradation when running in multithreaded mode.
Testing Results on 16 Cores system
As a Partner in Intel® Software Partner Program we got access to latest hardware platforms and
tested our memory manager on 16 cores system (4 CPU Intel Xeon, 4 Cores each). Performance
increase of our application running on such system reached unbelievable 15.5 times!

Questions:
1. Discuss the testing result of fine soft studio memory management.
2. Explain the business description of fine soft studio memeory management.

Self Assessment
Multiple choice questions:

7. PAL has a fixed array of ................ gates.
(a) AND (b) NOT
(c) OR (d) EX-OR
8. The size of the PLA is determined by the number of ..............
(a) functions (b) gates

(c) output (d) inputs

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